4,4′-Methylenebis(2-ethyl-6-methylaniline) / MMEA CAS No. 19900-72-2
| Product Name |
|
| CAS No. |
19900-72-2 |
| Appearance |
Liquid/Powder |
| Purity |
≥99%, ≥99.9%, ≥95%, Industrial Grade, Technical Grade (Other purities are also available) |
| Ingredient |
C19H26N2 |
| APS |
1-5 µM, 10-53 µM, Nano size (Can be customized), Ask for other available size range |
| Product Code |
NCZ-NRQ-379/26 |
Product Description
4,4′-Methylenebis(2-ethyl-6-methylaniline) / MMEA, CAS number 19900-72-2, is used as a chain extender for polyurethane elastomers and as a curing agent for epoxy resin to improve the mechanical and dynamic properties of products. MED can also be used as a leading compound for polyimides and as an intermediation for organic synthesis.
Well-suited for casting polyurethane (CPU), thermoplastic polyurethane (TPU), RIM elastomers and spray polyurea in the polyurethane field. MED is also applicable for the processing, prepreg and chemical anticorrosive coatings in the epoxy resin field. MED is used in the synthesis of prepolymers, including polyether and polyester.
MED is an ideal solution for finished products demanding light color and anti-aging. MED can be applied with other amine-type curing agents (compound) to meet better physical properties.
MED and MOCA are both amine-type curing agents. However, MED is eco-friendly and less polluted in comparison of MOCA. MED can also replace MBOEA and HQEE on PU products, no matter CPU (casting polyurethane) or TPU (thermoplastic polyurethane). Same as MOCA, MED-type elastomers feature with excellent heat-resistance demanding on working over 120℃
Product Features
RF is a two-component adhesive. After a certain proportion of RF is added to the adhesive, this mixed adhesive must be used within the operational period (pot life) which is influenced not only by its content of rubber, but also by other ingredients of the formulation (e.g. resins, antioxidants, solvents, and etc.). When the operating period is not used in time (usually delayed by a few hours or even one working day), the adhesive will become very thick and too viscous to use.
Application
MED/MMEA is an aromatic diamine chain extender and curing agent. Due to strict regulations on using MOCA, the eco-friendly, non-polluted MED is another ideal choice applying on a variety of applications. MED-base polyurethanes are versatility and design freedom, with high strength properties while retaining its elasticity. The MED-type finished products are durable and resistant which enables them are well-suited for demanding applications, such as bumper pads, casters, rollers, forklift tires, machine components and so on. Furthermore, MED can be also applied as a bridge agent on semi-conductor and as a curing agent on epoxy and polyurea.
Storage and transportation: Store in a well-ventilated place. As this product has slight hygroscopicity, please avoid contacting with water and avoid sunlight. Seal the container tightly after use. Meanwhile, it can’t be stored with oxidants.
Shelf life: 12 moths
Specification
| Chemical name |
4,4′-Methylene-bis(2-methyl-6-ethylaniline) |
| CAS Number |
19900-72-2 |
| Molecular formula |
C19H26N2 |
| Molecular weight |
282.4231 |
| Density |
1.039 g/cm3 |
| Fusion point |
85°C |
| Boiling point |
443.1°C at 760 mmHg |
| Specific weight |
1.44 (solid) at 24℃ |
| Flash point |
266°C |
| Appearance |
White powder |
| Moisture |
Below 0.3% |
| Amine value |
390-408 KOH mg/g |
| Acetone-insoluble material |
None |
| Total chlorine |
Below 10 ppm |
| Purity |
98.0% |
| Main usage |
Polyurethane curing agent, curing agent for epoxy resin, chain extender |
| Vapor pressure |
4.75E-08mmHg at 25°C |
4,4′-Methylenebis(2-ethyl-6-methylaniline) / MMEA CAS No. 19900-72-2 is generally immediately available in most volumes. Nanochemazone produces many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural, and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research, and safety (MSDS) information are available, as is a Reference Calculator for converting relevant units of measurement.
Related Information:
Storage Conditions:
Airtight sealed, avoid light, and keep dry at room temperature.
Please get in touch with us for customization and price inquiry
Email: contact@nanochemazone.com
Note: We supply different size ranges of Nano and micron as per the client’s requirements and accept customization in various parameters.
